diff --git a/README.md b/README.md
index 2021c15..061cac4 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@
 - Разобрать decltype и auto по статье
 До 27.01.2026
 - ~~Подобрать сервер по параметрам. Использовать linux.~~ DockerHosting.ru
-- Перевести string на string_view
+- ~~Перевести string на string_view~~
 - ~~Попробовать nodiscard к executoru~~
 - ~~Добить 2 ручки~~
 - Сделать тесты для ручек
diff --git a/src/DAO/IAuthDAO.h b/src/DAO/IAuthDAO.h
index 449a4c0..5177042 100644
--- a/src/DAO/IAuthDAO.h
+++ b/src/DAO/IAuthDAO.h
@@ -11,14 +11,14 @@ class IAuthDAO
 {
 public:
   virtual std::string Login(
-    const std::string& registrated_user_uuid,
-    const std::string& auth_token) = 0;
+    std::string_view registrated_user_uuid,
+    std::string_view auth_token) = 0;
 
-  virtual bool HasAuthorized(const std::string& auth_token) = 0;
+  virtual bool HasAuthorized(std::string_view auth_token) = 0;
 
-  virtual std::string_view GetUUID(const std::string& auth_token) = 0;
+  virtual std::string_view GetUUID(std::string_view auth_token) = 0;
 
-  virtual bool Logout(const std::string& user_token) = 0;
+  virtual bool Logout(std::string_view user_token) = 0;
 
   virtual ~IAuthDAO() = default;
 };
diff --git a/src/DAO/MemoryAuthDAO.cpp b/src/DAO/MemoryAuthDAO.cpp
index 96a8cd2..c940610 100644
--- a/src/DAO/MemoryAuthDAO.cpp
+++ b/src/DAO/MemoryAuthDAO.cpp
@@ -11,33 +11,33 @@ MemoryAuthDAO::MemoryAuthDAO(mysqlx::Session& session): session_(session)
 }
 
 std::string MemoryAuthDAO::Login(
-  const std::string& registrated_user_uuid,
-  const std::string& auth_token)
+  std::string_view registrated_user_uuid,
+  std::string_view auth_token)
 {
-  users_uuids_to_auth_tokens_[registrated_user_uuid] = auth_token;
-  auth_tokens_to_users_uuids_[auth_token] = registrated_user_uuid;
+  users_uuids_to_auth_tokens_[registrated_user_uuid.data()] = auth_token;
+  auth_tokens_to_users_uuids_[auth_token.data()] = registrated_user_uuid;
 
-  return auth_token;
+  return auth_token.data();
 }
 
-bool MemoryAuthDAO::HasAuthorized(const std::string& auth_token)
+bool MemoryAuthDAO::HasAuthorized(std::string_view auth_token)
 {
-  return auth_tokens_to_users_uuids_.count(auth_token) > 0;
+  return auth_tokens_to_users_uuids_.count(auth_token.data()) > 0;
 }
 
-std::string_view MemoryAuthDAO::GetUUID(const std::string& auth_token)
+std::string_view MemoryAuthDAO::GetUUID(std::string_view auth_token)
 {
-  return auth_tokens_to_users_uuids_.at(auth_token);
+  return auth_tokens_to_users_uuids_.at(auth_token.data());
 }
 
-bool MemoryAuthDAO::Logout(const std::string& auth_token)
+bool MemoryAuthDAO::Logout(std::string_view auth_token)
 {
   if (!HasAuthorized(auth_token)) return false;
 
-  string user_uuid = auth_tokens_to_users_uuids_[auth_token];
+  string user_uuid = auth_tokens_to_users_uuids_[auth_token.data()];
 
   users_uuids_to_auth_tokens_.erase(user_uuid);
-  auth_tokens_to_users_uuids_.erase(auth_token);
+  auth_tokens_to_users_uuids_.erase(auth_token.data());
 
   return true;
 }
diff --git a/src/DAO/MemoryAuthDAO.h b/src/DAO/MemoryAuthDAO.h
index ac6b442..6adef22 100644
--- a/src/DAO/MemoryAuthDAO.h
+++ b/src/DAO/MemoryAuthDAO.h
@@ -20,13 +20,13 @@ public:
   explicit MemoryAuthDAO(mysqlx::Session& session);
 
   std::string Login(
-    const std::string& registrated_user_uuid,
-    const std::string& auth_token) override;
+    std::string_view registrated_user_uuid,
+    std::string_view auth_token) override;
 
-  bool HasAuthorized(const std::string& auth_token) override;
+  bool HasAuthorized(std::string_view auth_token) override;
 
-  std::string_view GetUUID(const std::string& auth_token) override;
+  std::string_view GetUUID(std::string_view auth_token) override;
 
-  bool Logout(const std::string& auth_token) override;
+  bool Logout(std::string_view auth_token) override;
 };
 }